Rapid reload head power drain

I just bought (last week) the Rapid Reload Head system last with the edger attachment but no battery or charger. The problem is that as soon as I hook one of my 2.0 Ah batteries to the power head, it starts to drain the battery. The battery's light come on green and if I leave it hooked up it will drain all power from the battery in short order. Mind you this happens even if I don't have the edger attachment hooked up to the reload head. The trigger is of course not being depressed but yet there is some kind of parasitic draw that kills the battery in probably less than an hour.

The edger attachment does work but of course I don't know if I would be getting the same run time out of it with the power drain and I don't want to have to take the battery off every time it's not in use.

Hey Paul, thanks for the reply. I think I've had it in both when I left the battery on the unit, high and low. Yes, if you use the thing it works and the green light stays on even when the trigger goes back to the off position. Basically whether you ever depress the trigger or not, if you put a battery on it the light comes on and that battery will be drained.

I saw the thing in the manual about removing the battery before storage but that seems more like safety or battery longevity recommendation. I've got an Ego trimmer and blower and have left the batteries on those all the time and they never drain the battery and the green battery light doesn't come on just by connecting it to the tool.